Annotation of sys/net/if_slvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_slvar.h,v 1.12 2003/12/07 15:41:27 markus Exp $ */
! 2: /* $NetBSD: if_slvar.h,v 1.16 1996/05/07 02:40:46 thorpej Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1991, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)if_slvar.h 8.3 (Berkeley) 2/1/94
! 33: */
! 34:
! 35: #ifndef _NET_IF_SLVAR_H_
! 36: #define _NET_IF_SLVAR_H_
! 37:
! 38: /*
! 39: * Definitions for SLIP interface data structures
! 40: *
! 41: * (This exists so programs like slstats can get at the definition
! 42: * of sl_softc.)
! 43: */
! 44: struct sl_softc {
! 45: struct ifnet sc_if; /* network-visible interface */
! 46: int sc_unit; /* XXX unit number */
! 47: struct ifqueue sc_fastq; /* interactive output queue */
! 48: struct tty *sc_ttyp; /* pointer to tty structure */
! 49: u_char *sc_mp; /* pointer to next available buf char */
! 50: u_char *sc_ep; /* pointer to last available buf char */
! 51: u_char *sc_pktstart; /* pointer to beginning of packet */
! 52: struct mbuf *sc_mbuf; /* input buffer */
! 53: u_int sc_flags; /* see below */
! 54: u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */
! 55: long sc_lasttime; /* last time a char arrived */
! 56: long sc_abortcount; /* number of abort esacpe chars */
! 57: long sc_starttime; /* time of first abort in window */
! 58: long sc_oqlen; /* previous output queue size */
! 59: long sc_otimeout; /* number of times output's stalled */
! 60: #if defined(__NetBSD__) || defined(__OpenBSD__)
! 61: int sc_oldbufsize; /* previous output buffer size */
! 62: int sc_oldbufquot; /* previous output buffer quoting */
! 63: #endif
! 64: #ifdef INET /* XXX */
! 65: struct slcompress sc_comp; /* tcp compression data */
! 66: #endif
! 67: caddr_t sc_bpf; /* BPF data */
! 68: struct timeval sc_lastpacket; /* for watchdog */
! 69: LIST_ENTRY(sl_softc) sc_list; /* all slip interfaces */
! 70: };
! 71:
! 72: /*
! 73: * Statistics.
! 74: */
! 75: struct slstat {
! 76: u_int sl_ibytes; /* bytes received */
! 77: u_int sl_ipackets; /* packets received */
! 78: u_int sl_obytes; /* bytes sent */
! 79: u_int sl_opackets; /* packets sent */
! 80: };
! 81:
! 82: struct vjstat {
! 83: u_int vjs_packets; /* outbound packets */
! 84: u_int vjs_compressed; /* outbound compressed packets */
! 85: u_int vjs_searches; /* searches for connection state */
! 86: u_int vjs_misses; /* times couldn't find conn. state */
! 87: u_int vjs_uncompressedin; /* inbound uncompressed packets */
! 88: u_int vjs_compressedin; /* inbound compressed packets */
! 89: u_int vjs_errorin; /* inbound unknown type packets */
! 90: u_int vjs_tossed; /* inbound packets tossed because of error */
! 91: };
! 92:
! 93: struct sl_stats {
! 94: struct slstat sl; /* basic PPP statistics */
! 95: struct vjstat vj; /* VJ header compression statistics */
! 96: };
! 97:
! 98: struct ifslstatsreq {
! 99: char ifr_name[IFNAMSIZ];
! 100: struct sl_stats stats;
! 101: };
! 102:
! 103: /* internal flags */
! 104: #define SC_ERROR 0x0001 /* had an input error */
! 105:
! 106: /* visible flags */
! 107: #define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */
! 108: #define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */
! 109: #define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */
! 110:
! 111: /*
! 112: * These two are interface ioctls so that pppstats can do them on
! 113: * a socket without having to open the serial device.
! 114: */
! 115: #define SIOCGSLSTATS _IOWR('i', 123, struct ifslstatsreq)
! 116:
! 117: #ifdef _KERNEL
! 118: void slattach(int);
! 119: void slclose(struct tty *);
! 120: void slinput(int, struct tty *);
! 121: int slioctl(struct ifnet *, u_long, caddr_t);
! 122: int slopen(dev_t, struct tty *);
! 123: int sloutput(struct ifnet *,
! 124: struct mbuf *, struct sockaddr *, struct rtentry *);
! 125: void slstart(struct tty *);
! 126: int sltioctl(struct tty *, u_long, caddr_t, int);
! 127: #endif /* _KERNEL */
! 128: #endif /* _NET_IF_SLVAR_H_ */
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